-cooper



' WrLLrAi/rs-yeoornn, or rniLADnLrHrA, rnnnsrtyssir..

Spocicetion forming part of Letters Potent No.v ilfiidim, dated June 24, i873; application filed Maren s, 1873.

To all whomt't may 'eoncwnrv 4 Be it known that I, WILLIAM S.GoorEn, of the city and county of Eiiiiedelphia, Pennsylvania, have invented nu improvement in. "Veiveilocks, of which the following is n specification Y f The object of my invention is to insure the ready application and eljnstment, in e valve vsosia-r, fatiche eperiewempieyeei :to preyent leek." 'ngeeroun the screw-spindle, emi this object .i attain by the use of e recessed-oep or cover,vl e., i-nwixich is .iitted the packing o, ,surround- "ing tire spindle B, the pecking h,wi1ieh closes the joint between the cover and the cap, and e spring, d,whiol1 is supported by nring,` f, in tbe casing D, against the :Gange .b of the spindle, nii es shown inthe'verticalv section iiinstraied in the accompanying drawing.

he valve-chest D is of ordinary constructionfrrweiving. the usual, inlet and outlet pass ages separated by e partition, on, in which is en opening. The edge ot' thelatter being the sentier e gnidefi salve,'b,wl1ich is controlled by :tine screwspindle B, as in other "velve-V qcooirs of 'this eiass.. To the upper edge of the traire-chest is screwed the cover A, and in e recess in the top of thechest bears this'y metal ring j", between 4which and theeov'er A iscon-v The cone-shaped" iiiied a packing-ring, h.

allonge 1') oi' the spindle, is grond truly to e seeth tbecnr'er entibetween-A tnisiisn ge and rearranged or reritted by merely removing lthe oep, Wit-lient disturbing the casing.

It is not essentiai that the pecking-ring h should extend beneath .the nnnnler'spring;

it might, for instance, be no wider then the portion of 'the cover which beers upon it,.iu

, which case the spring will beer direetlyon the The ',combinotion, with e valve-easing, of e (ietaehable .plate,f, and eran., A, recessed to receive the valve b, upper enti lower peokings o it, and spring d., substantially as speciei. In testimony whereof have signed my neme to this speoiiicntion in the presence of two subscribing witnesses. t

- VM. S. CGPER.

ilitness'es: l

WM. A. STEEL, JOHN K. Romeins.

Ver fr 

